SmokeLoader | Tehdit Seviyesi: high | Tür: Loader

Kriptografik Tanımlayıcılar

SHA25697e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9
MD541a5f4fd1ea7cac4aa94a87aebccfef0
Dosya Türüexe
Boyut497.2 KB
İlk Görülme2021-04-22
Dosya AdıInstall.exe
EtiketlerSmoke Loader, SmokeLoader

Malware Ailesi: SmokeLoader

SmokeLoader, modüler loader/botnet'tir.

TürLoader
Programlama DiliC
Hedef PlatformWindows
C2 ProtokolüHTTP
AmaçEk yük indiren botnet
İlk Görülen Yıl2011
Diğer İsimlerDofoil

Tehdit Göstergeleri (IOC)

  • SHA256: 97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9
  • MD5: 41a5f4fd1ea7cac4aa94a87aebccfef0

Sistem Temizleme Rehberi

  1. Sistemi ağdan ayırın — Loader başka zararlı yazılım indiriyor olabilir
  2. İndirilen tüm payload'ları analiz edin
  3. Tüm ağ trafiğini inceleyin, şüpheli bağlantıları kesin
  4. Antivirüs ile tam tarama yapın
  5. Sistem yenileme düşünün

YARA Kuralı İpuçları

rule SmokeLoader_SHA256 {
    meta:
        description = "SmokeLoader sample: 97e95e99fd499ec4"
        threat_level = "high"
        first_seen = "2021-04-22"
    condition:
        hash.sha256(0, filesize) == "97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9"
}

SmokeLoader — 악성코드 프로필

SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.

악성코드 유형
Loader
프로그래밍 언어
C
C2 프로토콜
HTTP
대상 시스템
Windows
다른 이름 (AKA)
Dofoil

기술 세부 정보

SmokeLoader (Dofoil/Smoke Bot) is a modular loader/downloader active since 2011. Primary function: download and execute additional payloads (Emotet, TrickBot, FormBook, Ursnif). Heavy obfuscation: string encryption (RC4+XOR), process injection via APC, code injection. Heaven's Gate technique: switches from 32-bit to 64-bit mode to evade WoW64 hooks. Anti-analysis: CPUID-based VM detection, process listing for analysis tools, timing checks. Uses process hollowing to inject into explorer.exe or svchost.exe. C2 communication: RC4-encrypted HTTP POST requests with bot ID, campaign ID. Sold as pay-per-install (PPI) service on underground forums (~$400/1000 installs). Frequently updated to bypass detection, >100 variants documented.

귀속 / 위협 행위자

Unknown (sold on underground forums, multiple operators)

기능 및 동작

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC 목록 (2 개 지표)

IOC — SmokeLoader
# SHA256 97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9 # MD5 41a5f4fd1ea7cac4aa94a87aebccfef0
유형메모
sha256 97e95e99fd499ec45a7c1d8683d5731ce5e7a8fb8b710622e578cd169a00d8d9
md5 41a5f4fd1ea7cac4aa94a87aebccfef0

C2 서버 (이 패밀리에 대해 5개의 서버 기록)

주소 유형 포트 프로토콜 상태 국가
80.66.75.36 ip 80 HTTP inactive RU
148.72.171.175 ip 80 HTTP inactive US
91.243.44.247 ip 8888 HTTP inactive RU
185.173.35.16 ip 8080 HTTP inactive RU
torcavpcs1.atitech.com domain 443 TCP inactive —

C2 주소는 KEYDAL 팀이 수동으로 검증한 악성코드 샘플에서만 제공됩니다. 상업적 사용은 금지됩니다.

태그
smokeloaderloadermalwarehighsha256analizzenginleştirilmiş